TW201119451A - Method and apparatus for transmit power control for multiple antenna transmissions in the uplink - Google Patents

Abstract

Techniques for transmit power control for multiple antenna transmissions in an uplink are disclosed. A wireless transmit/receive unit (WTRU) generates at least one input stream for transmission and applies a gain factor to each channel. The gain factor is determined based on a reference channel power estimate. The WTRU generates at least two data streams from the input stream for transmission via a plurality of antennas and applies weights to the data streams. The gain factor and/or the weights are controlled such that a transmit power on each antenna is within a maximum allowed value. The WTRU may perform power scaling on a condition that a transmit power on any antenna exceeds the maximum allowed value. The WTRU may scale down an enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH) first before other channels. For multiple E-DCH streams, the WTRU may calculate an E-DPDCH power offset based on an additional power offset factor due to multiple stream transmission.

Description

201119451 VI. Description of the invention: [Technical field to which the invention pertains] [0001] Cross-Reference to Related Applications This application claims US Provisional Application No. 61/248, 034 and January 1st, 2009 submitted in January 2, 2009 Priority is set forth in the U.S. Provisional Application Serial No. 61/247,995, filed on Jan. 2, the content of which is hereby incorporated by reference. Information business money fence. In order to meet the growing demand, new wireless technologies have been developed. For example, in the 3rd Generation Partnership Project (3Gpp) Broadband Code Division Multiple Access (WCDMA), High Speed Downlink Packet Access (HSDpA) and High Speed Uplink were introduced in Release 5 and Version 6, respectively. Link Packet Access (HSUPA) to achieve significant growth in spectral efficiency and peak data rates. The airborne wireless signal material is subject to various signal losses, including transmission loss, shadowing, multipath_, and township frequency shifting. Multipath fading or fast fading is caused by a combination of replicas of the variable phase (4). The phase and amplitude of the change are the reflections on the object encountered in the cause. More, the fluctuation of the transmitted signal power. Nonglo leads to unwanted connections. A transmit diversity scheme has been developed to handle fading. Shooting diversity is the same letter that is sent on multiple independent paths. Shooting diversity is a scheme that passes Q at different times in time. .............Time (time diversity) 'Name Green 099133722 1. π-minute 隹λ Same frequency carrier or sub-carrier (frequency diversity).杲) Inter-diversity) sends the same signal and the actual two different days Form No. Α0101 Page 4 / Total page, Down 鲢 201119451, both closed-loop and open-loop, are part of the WCDMA specification. Multi-antenna techniques, such as transmit diversity/beamforming or multiple-input multiple-output (ΜΙΜΟ), are not adopted by HSUPA. Enhanced uplink performance is important to reduce WTRU transmit power requirements, especially for high data rate applications. In addition to reduced WTRU battery consumption, improved UL performance translates into better coverage for high data rate services. Power control is an important factor in interference management in interference-limited multi-user communication systems, especially for code division multiple access (CDMA) based sputum systems. In such a system, the performance of each user depends not only on its own transmission, but also on the transmission of other accounts. The conventional power control mechanism for the line link is based on a single-input single-output (SIS〇) system in which only one antenna is used for both the transmitter and receiver terminals. SUMMARY OF THE INVENTION [0003] 〇 099133722 An embodiment for transmitting a throttling rate control for multi-antenna transmission in the uplink is disclosed. The wireless transmit/receive unit generates at least one input stream for transmission' and applies a gain factor to each channel. The gain factor is broken based on the reference channel power estimate. The WTRU generates at least two data streams for transmission via the plurality of antennas from the input stream and applies weights to the data streams. The gain factor and/or weight are controlled such that the transmit power on each antenna is within the maximum allowed value. Power scaling can be performed if the transmit power on any of the antennas exceeds the maximum allowed value. The WTRU may first narrow down the Enhanced Dedicated Channel (E-DCH) dedicated physical data channel (E_DpDCH) before other channels. For multiple E-DCH streams, the WTRU may calculate the E-DPDCH power offset based on the additional power offset factor caused by the multi-stream transmission. 1003016704-0 Form No. A0101 Page 5 of 69 201119451 [Embodiment] FIG. 1A is a schematic diagram of an exemplary communication system 100 in which one or more disclosed embodiments may be implemented. Communication system 100 can be a multiple access system that provides content, such as voice, material, video, messaging, broadcast, etc., to multiple wireless users. Communication system 100 can enable multiple wireless users to access the content through the sharing of system resources, including wireless bandwidth. For example, communication system 100 can use one or more channel access methods, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMAC OFDMA. ), single carrier FDMA (SC-FDMA), etc. As shown in FIG. 1A, communication system 100 can include wireless transmit/receive units (WTRUs) 102a, 102b, 102c, 102d, radio access network (RAN) 104, core network 106, public switched telephone network (PSTN). 108, the Internet 110 and other networks 112, however, it should be understood that the disclosed embodiments contemplate any number of WTRUs, base stations, networks, and/or network elements. Each of the WTRUs 102a, 102b, 102c, 102d may be any type of device configured to operate and/or communicate in a wireless environment. By way of example, the WTRUs 102a, 102b, 102c, 102d may be configured to transmit and/or receive wireless signals, and may include user equipment (UE), mobile stations, fixed or mobile subscriber units, pagers, cellular telephones, personal digital assistants (PDA), smart phones, laptops, netbooks, personal computers, wireless sensors, consumer electronics, and more. Communication system 100 can also include base station 114a and base station 114b. Each of the base stations 114a, 114b may be any type of device configured to communicate with at least one of the WTRUs 102a, 102b, 102c, 102d 099133722 Form No. A0101 Page 6 of 69 pages 1003016704-0 to facilitate storage Take one or one internet 11n a communication network, such as core network 106, U4b may be β # / or network 112. By way of example, the base station U4a, B, the family:: the originating station (BTS), the node B, the evolved node (AP), the station control 11, the access point are described as a single-= And so on. While each of the base stations 114a, 114b includes any number, it should be understood that the base stations and/or network elements to which the base stations 114a, u4b can be connected. The coverage is 1 point of RAN1Q4, which may be a base station and/or a network element (not shown), such as a base station control. The radio network controller (RNC), relay node, etc., and/or base station U4b may be configured to X within a particular geographic area, and/or receive wireless nicknames, which may be referred to as services Area. (cel is not out). The service area can be divided into service area sections. For example, associated with base station 11a, the service area can be divided into two sectors. Thus, in one embodiment, base station 114a may include three transceivers, i.e., each of the service areas: the sector uses one transceiver. In another embodiment, base station 144a may use multiple input multiple output (MIMO) technology' and thus multiple transceivers may be used for each segment of the service area. The base stations 114a, 114b can communicate with one or more of the WTRUs 2a, 102b, 102c, 102d via the null plane 116, which can be any suitable wireless communication key (e.g., radio frequency (RF) , microwave, infrared UR), ultraviolet (UV), visible light, etc.). The empty intermediaries 116 can be established using any suitable radio access technology (RAT). More specifically, as described above, 'communication system 100 may be a multiple access system, Form No. A0101, No. 7 1 / Total 69, 10 201119451 and may use one or more channel access schemes, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, etc. For example, base station 114a and WTRUs 102a, 102b, 102c in ran 1〇4 may implement a radio technology such as Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (UTRA), which may be established in the air using Wideband CDMA (WCDMA). Interface 116. WCDMA may include communication protocols such as Bearer Packet Access (HSPA) and/or Evolved HSPA (HSPA+). HSPA may include High Speed Downlink Packet Access (HSDPA) and/or High Speed Uplink Packet Access (HSUPA). In another embodiment, base station H4a and WTRUs 102a, i〇2b, 102c may implement a radio technology, such as Evolved UMTS Terrestrial Radio Access (E-UTRA), which may use Long Term Evolution j (lTE> and/or Advanced LTE (LTE-A) establishes an empty intermediation plane 116. In another embodiment, the base station U 4a and the WTRUs 102a, 102b, 102c may implement a radio technology, such as IEEE 802.16 (ie, Worldwide Interoperability Microwave Access (WiMAX) )), CDMA2000, CDMA2000 IX 'CDMA2000 EV-DO, Provisional Standard 2000 (IS-2000), Provisional Standard 95 (IS-95), Provisional Standard 856 (IS-856), Global System for Mobile Communications (GSM), GSM Evolution Enhanced Data Rate (EDGE) 'GSM EDGE (GERAN), etc. The base station 114b in Figure 1A may be, for example, a wireless router, a Home Node B, an Evolved Node β or an access point, and may use any A suitable RAT is used to facilitate wireless connections in local areas, such as commercial premises, homes, vehicles, campuses, etc. In one embodiment, the base station U and the WTRUs 2c, i〇2d may implement radio technologies, such as IEEE 802.11. , to build Wireless local area network (WLAN). In another implementation, 099133722 Form No. A0101, page 8 / page 69, 1003016704-0 201119451, base station 114b and WTRUs 102c, 102d may implement a radio technology such as IEEE 802. Establishing a wireless personal area network (WPAN). In still another embodiment, the base station 114b and the WTRUs 〇2c, 102d may be established using a cellular based RAT (eg, WCDMA, CDMA2000, GSM, LTE, LTE-A, etc.) The pico cell or the femto cell. As shown in Figure 1A, the base station 114b may have a direct connection to the Internet 110. Thus, the base station 114b may not have to access the Internet 11 via the core network 106.

The G RAN 104 can communicate with a core network 1-6, which can be configured to one of the WTRUs 102a, 102b, 102c, 102d.

One or more types of networks that provide voice, data, application, and/or Voice over Internet Protocol (VoIP) services. For example, core network 1-6 can provide call control, billing services, mobile location based services, prepaid calls, internet connections, video distribution, etc., and/or perform high level security functions such as user authentication. Although not shown in FIG. 1A, it should be understood that the RAN 104 and/or the core, the network i 0 & may be in direct or indirect communication with the same RAT as the RAN 104 or other & . For example, in addition to being connected to the RAN 104, the RAN 104 may be using an e-utra radio technology, and the core network 106 may also be in communication with another RAN (not shown) using a GSM radio technology. Core network 106 may also serve as a gateway for WTRUs 102a, 102b, 102c, 102d to access PSTN 108, Internet 110, and/or other network U2. The PSTN 1〇8 may include a circuit switched telephone network that provides a plain old telephone service (p〇TS). Internet 110 may include a globally interconnected computer network system and devices that use public communication protocols, such as Transport Control Protocol (TCP) Form Number A0101, User Datagram Protocol (UDP), and Page 9/ A total of 69 pages 1003016704-0 201119451 Internet Protocol (IP) in the TCP/IP Internet Protocol family. Network 112 may include a wired or wireless communication network that is owned and/or operated by other service providers. For example, network 11 2 may include another core network connected to one or more RANs, which may use the same RAT as RAN 104 or a different RAT. Some or all of the WTRUs 102a, 102b, 102c, 102d in the communication system 100 may include multi-mode capabilities, i.e., the WTRUs 102a, 102b, 102c, 102d may include multiple communications with different wireless networks over different wireless links. Transceiver. For example, the WTRU 102c shown in FIG. 1A can be configured to communicate with and communicate with a base station 114a that can use a cellular-based radio technology, and the base station 114b can use an IEEE 802 radio technology. FIG. 1B is a system diagram of an exemplary WTRU 102. As shown in FIG. 1B, the WTRU 102 may include a processor 118, a transceiver 120, a transmit/receive element 122, a speaker/microphone 124, a keyboard 126, a display/touchpad 128, a non-removable memory 130, and a removable memory. Body 132, power source 134, global positioning system (GPS) chipset 136, and other peripheral devices 138. It should be understood that the WTRU 102 may include any sub-combination of the aforementioned elements while maintaining consistency with the embodiments. The processor 118 can be a general purpose processor, a special purpose processor, a conventional processor, a digital signal processor (DSP), a plurality of microprocessors, one or more microprocessors, controllers, and micro-controls associated with the DSP core. , application specific integrated circuit (ASIC), field programmable gate array (FPGA) circuit, any other type of integrated circuit (1C), state machine, and so on. The processor 118 may perform signal encoding, data processing, power control, input/output processing, and/or any other functionality that enables the WTRU 102 to operate in a wireless environment. 099133722 Form Number A0101 Page 10 of 69 Page 301016704-0 201119451 . The processor 118 can be coupled to the transceiver 12A, which can be consuming to the transmit/receive element 122. Although processor 118 and transceiver 12A shown in Figure 1B are separate components, it should be understood that processor 118 and transceiver 120 can be integrated together in an electronic package or wafer. Transmit/receive element 122 may be configured to transmit signals to or from a base station (e.g., base station 114a) via null intermediate plane 6 or to receive signals from a base station (e.g., base station U4a). For example, in one embodiment, the transmit/receive element 122 can be configured to transmit and/or receive an antenna of an RF signal. In another embodiment, the hair/receiving element 122 can be configured to transmit and/or receive an emitter/dancer such as an IR, UV or visible light signal. In another

In an embodiment, the 'transmitting/receiving element 122 can be paired to transmit and receive RF .::3⁄4 丨 ^ • " ίί '·%' 1 '·••...'Ίίΐρ'^ and the optical signal. It should be understood that the transmit/receive element 122 can be configured to transmit and/or receive any combination of wireless signals. Moreover, although the transmit/receive element 122 is shown as a single element in FIG. 1, the WTRU 102 may include any number of transmit/receive elements 122. More specifically; iTRU 102 can use ΜΙΜΟ technology. As a result of I_*, in one embodiment, the WTRU 102 may include two or more transmit/receive elements 122 (e.g., multiple antennas) for transmitting and receiving wireless signals via the null intermediate plane 116. Transceiver 120 is configurable to condition the signal to be transmitted by transmit/receive element 122 and to demodulate the signal received by transmit/receive element 122. As noted above, the WTRU 102 may have multi-mode capabilities. Thus, the transceiver 12A can include a plurality of transceivers that enable the WTRU 102 to communicate via a plurality of RATs, such as UTRA and IEEE 802.1. The processor 118 of the wTrU 102 can be coupled to the device described below, and can receive user-involved data from the following device commands: Form No. A0101 Page 11 / Total 69 Page 1003016704-0 099133722 201119451: Speaker/Microphone i24, Keyboard 126 and / or display / trackpad 128 (for example, liquid crystal display (LCD) display unit or organic light emitting diode (OLED) display unit). The processor 118 can also output the user f to the speaker/microphone ι24, the key 126 and/or the display/touchpad 128. In addition, the processor (1) can access information from any type of appropriate memory and can store data into the buddy, such as the non-removable memory ι6 and/or the removable memory 132. The non-removable memory 1〇6 may include a random access memory (RAM), a read only memory (_), a hard disk, or any other type of memory storage device. The removable memory 132 can include a user identification module and a (SIM) card, a memory stick secure digital (throw) deposit card, and the like. In other embodiments, the device does not physically access the information stored in the memory on the WTRU 102 and may store the data in the memory, such as on a server or a home computer (not show). The processor 118 can receive power from the power source 134 and can be configured to allocate and/or control power to other components in the ffTRU 102. Power source 134 can be any suitable device that powers WTRU 102. For example, the power source 134 can include one or more dry battery cells (eg, nickel cadmium (NiCd), nickel zinc (NiZn), nickel metal hydride (NiMH), lithium ion (Li-ion), etc.), solar cells 'Fuel batteries and more. The processor 118 can also be coupled to a GPS die set 136 that can be configured to provide location information (e.g., longitude and latitude) with respect to the current location of the WTRU 1〇2. In addition to or in lieu of information from the GPS chipset 36, the WTRU 102 may receive location information from the 099133722 base station (e.g., 'base stations 114a, 114b) via the null plane ία, Form Number A0101 Page 12 of 69 and/or Or 1003016704-0 201119451 Determine its position based on the timing of signals received from two or more neighboring base stations. It should be understood that WTRU 1 〇 2 may obtain location information by any suitable location determination method while maintaining compliance with the implementation. The processor 118 may also be consuming to other peripheral devices 138, which may include one or more software and/or hardware modules that provide additional features, functionality, and/or wired or wireless connections. For example, peripheral device 138 may include an accelerometer, an electronic compass, a satellite transceiver, a digital camera (for image or video), a universal serial bus (USB) port, a vibrating device, a television transceiver, a cordless headset, Bluetooth 8 module, FM radio unit, digital music player, media player, video game player module, internet browser and so on. Fig. 1C is a system diagram of ^ 〇 4 and Mori network 1 〇 6 according to an embodiment. As described above, the RAN 104 can communicate with the WTRUs 102a, 102b, 102c over the null plane 116 using UTRA radio technology. The RAN 104 can also communicate with the core network 106. As indicated by ica-ica, ran 104 may include nodes b 140a, 14Gb, 140c, each of which may include one or more transceivers for communicating with the WTRUs 1a, 2b, 2b, through the null plane 116, 102c communication. Node Bs 140a, 140b, 140c may each be associated with a particular service area (not shown) within RAN 1〇4. The RAN 104 may also include RNCs 142a, 142b. It should be understood that 'RAN 1〇4' may include any number of Node Bs and RNCs while maintaining consistency with the implementation. As shown in FIG. 1C, Node b 140a, 140b may communicate with RNC 142a. Additionally, Node B 140c can communicate with RNC 142b. Node Bs 140a, 140b, 140c may be associated with RNC 142a, 099133722 via Iub interface respectively. Form number A0101 Page 13 of 69 1003016704-0 201119451

142b communication. The RNCs 142a, 142b can communicate with each other via the Iur interface. Each of the RNCs 142a, 142b is configurable to control where the Node Bs 140a, 140b, 140c are respectively connected. In addition, each of the RNCs 142a, 142b can be configured to perform or support other functions such as outer loop power control, load control, admission control, packet scheduling, handover control, macro diversity, security functions, data encryption, and the like. The core network shown in Figure 1C may include a Media Gateway (MGW) 144, a Mobile Switching Center (MSC) 146, a Serving GPRS Support Node (SGSN) 148, and/or a Gateway GPRS Support Node (GGSN). . While each of the above elements is anchored as part of the core network 106, it should be understood that any of these elements can be shipped from the remainder of the core network. The RNC 142a in the owning and/or contending RAN 104 may be connected to the MSC 146 in the core network 106 via an IuCS interface. The MSC 146 may be connected to the MGW 144° MSC 146 and the MGW 144 may be the WTRUs 1a, 102b, 102c Providing access to the circuit switched network 'This switch is: for example, PSTN 108, to facilitate communication between the WTRUs 102a, 102b, 102c and the conventional landline communication device. RNC 142a in the RAN 104 The SGSN 148 «SGSN 148, which may also be connected to the core network 106 via the Iups interface, may be connected to the GGSN 150° SGSN 148 and the GGSN 150 may provide the WTRUs 102a, 102b, 102c with access to the packet switched network, the packet exchange The network is, for example, the Internet 110 to facilitate communication between the WTRUs 102a, 102b, 102c and IP-enabled devices. As noted above, the core network 106 can also be connected to the network 112, which can include Others owned and/or operated by other service providers 099133722 Form nickname A0101 Page 14 of 69 1〇〇30167〇4-0 201119451 Wired or wireless network. It should be noted that the following will describe the implementation in the context of 3GPP HSUPA operation for dual antenna transmission, However, the described embodiments are applicable to any wireless technology and systems having more than two transmit antennas. It should also be noted that in the embodiments disclosed below, a dedicated physical control channel (DPCCH) will be used as the power reference channel. 'But any other channel (eg, pilot channel) can be used as the power reference channel. The terms "E-DCH stream" and "E-DCH codeword" will be used interchangeably. Figure 2 is based on an implementation The mode shows an exemplary transmitter 20. The transmitter 200 (which may be located within the WTRU) has beamforming capability and includes a weighting block 202, a PA 2 〇 4, and an antenna 2 〇 6 Λ 棼, which are divided into two Branches. The signals from each branch are weighted by the weighting block 2 ® 2, the composite weights w 1 1 * 1 and w2, and then amplified by ΡΑ 204. The output signal from ΡΑ 204, output 1 and output 2, followed by Via the day 1 and antenna 2 are transmitted over the air. No loss of generality 'Assume that the input signal power is normalized to 1 °. The output power measured at the connector of antenna 1 and antenna 2 can be expressed as: =ΚΓσι P〇ua = ΚΓσ2 Equation (1) Equation (2) where G1 and G2 are the power gains of the amplifiers ΡΑι and PA2, respectively. If the weights w and w are unconstrained, then the transmitter in Fig. 2 may not produce a fixed power output when the sum of the power outputs is higher than the two antennas. If the channel gain to the receiver is the same for both antennas, then enough phase offset is used to derive the gain from beamforming. However, 099133722. Form number Α0101 Page 15 of 69 1003016704-0 201119451 If the channel gain to the receiver is different for both antennas, then non-unit amplitude weights can be used for each antenna. In fact, the total transmit power from the antenna beamformer can be limited to uniform, which allows reuse of some unmodified conventional mechanisms, such as power control. Figure 3 shows an exemplary transmitter 300 having a beamformer with unit power constraints. Transmitter 30 0 (which may be located within the WTRU) includes a weighting block 302, a PA 304, and an antenna 306. The input signal is divided into two branches. The signals from each branch are weighted composite weights such that the amplitude gain is adjusted by gain control block 302 in one branch and the amplitude gain and phase are adjusted by gain control block 303a and phase control block 303b in the other branch. Both amplitude gain and phase can be adjusted in two branches. The total gain on both antennas remains the same. The weighted signal is amplified by PA 304. The output signals from the PA 304, output 1 and output 2, are then transmitted over the air via antenna 1 and antenna 2, respectively. By constraining the PA output to have the same gain, the total power on the two antennas becomes constant for any value of the weighted amplitude gain and phase offset ρ of the actual estimate. Assuming that the input signal power is normalized to 1, then the output power at each antenna of the power-limited beamformer in Figure 3 can be expressed as follows: ρ-=α2σ> Equation (3) U = Milk Equation (4) The output power at the connectors of antenna 1 and antenna 2, Ρ +1 and 卩+9, can be out 1 out2 limited to a specific value (called P +) due to the physical max, tx limit of the device or due to the network constraint. In 3GPP, the maximum allowable transmit power P+ of a WTRU is defined as follows: max, tx 099133722 Form number A0101 Page 16 of 69 1003016704-0

Pmax,tx=min{Maximum_allowed_UL_TX_Power, Pmax} Equation (5) where Maximum_al lowed_UL_TX_Power is set by the UMTS Terrestrial Radio Access Network (UTRAN) and P is the WTRU nominal maximum output power based on the WTRU power max rate level. The transmitters 200, 300 shown in Figures 2 and 3 have beamforming capabilities that form beams of a particular directionality. The spatial shape of the beam can be controlled by the weighting values w1 and w2 of the general beamformer in Fig. 2 and the weighted amplitude gain α and phase offset φ of the unit power limited beamformer in Fig. 3. Typically, beam shape and result weights are designed based on optimization criteria. For example, the weights can be designed to 'get the maximum power transmitted in a particular angular direction. In a closed loop system, the receiver can determine a set of desired transmission weights and signal them to the transmitter. These weights can be quantified to reduce the signaling load. Since the weight of the usual quantization is different from the unquantized weight of the desired, this results in the difference between the desired beam and the actual beam produced by the weighting. Quantitative control, designed to make system performance not subject to large impairments due to quantization "to a large extent, the actual closed-loop beamforming and transmit diversity systems are designed to be robust to changes in beam shape, And some degree of mitigation of beamforming weighting accuracy can be supported. The WTRU measures reference channel power (eg, DPCCH power) at the ΡΑ output. The WTRU, for example, uses DPCCH power measurements to determine a set of supported transport format combinations (TFC) ) and Enhanced Dedicated Channel (E-DCH) Transport Format Combination (E-TFC) for reporting power headroom measurements (ie 'UE Power Headroom (UPH)), etc. Form No. A0101 Page/Total 69 pages 1〇031 201119451 For TFC and Ε-TFC restrictions, the WTRU calculates many parameters in the calculation of the amount of power available to transmit data in the uplink. For example, during the E-TFC restriction process, the WTRU first determines the power of the DPCCH. And maximum allowable transmit power Pmax, tx ° WTRU is also based on DPCCH, dedicated physical data channel (DPDCH), high-speed dedicated physical control channel (HS_DpccH) and E-DCH dedicated physical control The power of the channel (e-DPCCH) is used to calculate the normalized residual power margin (NRPM) to determine the state of each Ε-TFC (supported or blocked). In a WTRU with a single PA and a single antenna, The DPCCH power measurement reference point is the PA output (ie, at the antenna connector). ^ In the itRU with two pa and two antennas, there are two DPCCH power measurements: PnDPPU, and PDPeeH>2, for Figure 2 and One of each antenna is used in Figure 3. In a two-antenna transmitter with two power amplifiers, the power allocated to each antenna can be related to the DPCCH or other power reference channel (eg, pilot channel). One DPCCH The two DPCCHs (DPCCH1 and DPCCH2) can be transmitted via two antennas via the antennas in the uplink link. Embodiments for calculating the DPCCH code power (PnDM) are disclosed below. According to one embodiment, the WTRU may calculate a slotwise DPCCH power estimate for each time slot t by selecting the largest of the DPCCH power measurements at antenna connectors 1 and 2 for each time slot t, as follows Show DPCCH(6)=max(^DPCCH 2(f)\ Equation (6) where is the time slot mode DPCCH power estimate for time slot t, and ΡπσπΛ and J (ί) are for time slot seven in the antenna connection 099133722 form No. A0101 Page 18 of 69 1003016704_0 201119451 Time slot mode DPCCH power measurement at connectors 1 and 2. The WTRU then averages the selected slotted mode DPCCH power estimate over the transmission time interval (TTI). Calculate the DPCCH code power (PDPCCH), (for example, three time slots on a 2ms TTI) as shown below

Pdpc Equation (7) where Ν is the number of time slots in the TTI. ❹ This embodiment ensures that no power limitation is imposed on any power amplifier. In beamforming, the beam pattern is not distorted by the power limitations on an amplifier. ^1 According to another embodiment, the tfTRU score calculates the slotted mode DPCCH power estimate for each slot by averaging the time slot side, ^ _ ···· DPCCH power measurements for each slot. As follows: 2 Equation (8) Ο The WTRU then calculates the bird w^crcw by taking the time slot mode DP c ^ H power on τ TI (0· is averaged, as shown in equation (7) DPCCH code power. This embodiment produces a DPCCH power estimate averaged over two PA and 3 time slot averaging periods, which is used by NRpM calculations, "(10) selectable power is available on any antenna. Transmission block of power. Filtering can help reduce variations in the difference between available power and required power. According to another embodiment, the WTRU can filter slotted mode DPCCH power measurements for each antenna on ττΐ Calculate the filter for each antenna 099133722 Form No. A0101 Page 19 / Total 69 Page 1003016704-0 201119451 DPCCH power estimation after wave.

Pdpc, filtered,\

f,filtered, 2

Equation (9) Equation (10) where PDPCCH, filtered, 1 and PDPCCH, mtered, 2 are the D P C C Η power estimates for the antennas 1 and 2, respectively. Then w τ r υ calculates the sand 匸 (3) code power by selecting the largest of the filtered DPCCH power estimates as follows: R,

DP'CCH

Max( ^DPCCH ,filtered ,l> ^DPCCH •filtered , 2 - Equation (11) According to another embodiment, first fTRU filters the time slot mode DPCCH power measurement for each antenna by τπ, such as ^( 9> and (1〇) are shown to calculate a filtered DPCCH power estimate for each antenna. The WTRU then calculates the DPCCH code power by estimating the averaged value of the filtered DPCCH power as follows:

DPCCH ^DPCCH, filtered, \ + ^DPCCH, filtered. 2 2 Equation (12) According to another embodiment, when P + is defined as the maximum total transmit power of the WTRU from the two transmit antennas, the WTRU first passes The time slot mode DPCCH power measurement at each of the time slots at antenna connectors 1 and 2 is summed to calculate the slotted mode DPCCH power estimate for each time slot, as shown in the following equation (13) ^DPCCI^f) ~ ^DPCCm (0 + ^DPCCH, 2 (^) The WTRU then calculates the DPCCH power estimate by filtering the slotted mode DPCCH power estimate on the TTI. 099133722 Form Number A0101 Page 20 of 69 1003016704-0 201119451 Another embodiment 'When Pmax, tx is defined as the maximum total transmit power of the WTRU from two transmit antennas, the WTRU first calculates the chopping for each antenna by filtering the slotted mode DPCCH power estimate on the ^. The subsequent DPCC Η power estimate. The WTRU then calculates the DPCH code power by summing the decremented DPCCH power estimates for the antenna as follows:

Pr .filtered , + Pdpc .filtered , 2 Equation (14) The following is a summary of the calculation of the normalized residual power margin (NRPM).

Way of application.

The WTRU calculates the NRPM and increments the value to determine the supported E-TFC set. According to one embodiment, the WTRU first calculates the filtered DPCCH power for each antenna. The WTRU then calculates the NRPM for each antenna using conventional steps. The WTRU then uses the smallest of the two NRPMs to calculate the supported E-TFC set. In an alternative option, the WTRU may average the two NRPMs and use the result to calculate the supported E-TFC 1 3 a1 ^ v i k "

set. In another alternative, the WTRU may use the largest of the two NRPMs to account for the E-TFjC set of Qin 1 aid. In another embodiment, the WTRU may use NRPM for each antenna to verify the second criterion for the happy bit. The satisfactory bit indicates whether the WTRU is satisfied with the current grant in the uplink transmission. The WTRU may calculate a supported set of E-TFCs for each antenna individually and determine if it has sufficient power to transmit a larger identified E-TFC on each antenna according to conventional procedures. In one embodiment, if the WTRU determines that it has sufficient power to transmit a larger identified E-TFC on both antennas, then the WTRU may continue to evaluate the satisfactory bits according to the second criterion. 099133722 Form Number A0101 Page 21 of 69 page 1003016704-0 201119451. If the WTRU determines that it does not have sufficient power to transmit a larger identified E-TFC on at least one of the antennas, the WTRU may report that it is "satisfactory" and may stop the evaluation of the second criterion. In another embodiment, if the WTRU determines that it has sufficient power to transmit a larger identified E-TFC on at least one antenna, then the WTRU continues to evaluate the satisfactory bit according to the second criterion. If the WTRU determines that it does not have sufficient power to transmit a larger identified E-TFC on both antennas, the WTRU may report that it is "satisfactory" and may stop evaluating the second criterion. Embodiments for calculating uypH are disclosed below. The WTRU calculates UPH' and reports the UPH to the network. It is the ratio of the maximum WTRU transmit power to the DPCCH code power, and is calculated as follows: UP Η

Ρ卿 IPDPCCH Equation (15) where PDPCCH is the transmitted code power on the DPCCH.

For the purpose of the uplink key h source scheduling, 'transmit UP 到 to one or more nodes B ° WTRU averages uph on a predetermined period (eg, i 〇〇 ms), and passes the mapping table Map # to an index. In the context of UL TX diversity, UPH calculations may be performed using one of the following embodiments, or any combination thereof. According to one embodiment, the WTRU may calculate the UPH for each antenna as in the conventional manner shown in equation (15) and then report the more conservative (i.e., smaller) values to the network. More specifically, if UPH1 is UPH 'UPH2 at the antenna 1 connector is the UPH at the antenna 2 connector, the WTRU may report the minimum of the two values as follows: Equation (16) UPH = Ώήη(ϋΡΗνυΡΗ2) 099133722 Form Number Α 0101 Page 22 of 69 1003016704-0 201119451 where UPH is the value that the WTRU reports to the network as part of the scheduling information (SI). According to another embodiment, the WTRU may calculate 每个ίΙ for each time slot based on the maximum slotted mode DPCCH power on the two antennas and average the calculated time slot mode uph for the averaging period (e.g., 100 ms). The UPH can be calculated as follows: ___ max (P purchase, 1 (〇υ) Ο where PDPCCH, l(t) and P] > pCCH, [(t) is the slot mode estimation of DPCCH power at antennas 1 and 2, respectively, And N is the number of samples in the estimate. According to another embodiment, first the ffRU can calculate each by averaging the DPCCH power measurements at each day: line on an average period (eg 'lOnis) The filtered Dptcilh power of the antenna is then calculated using the maximum value of the filtered DPCCH code power on the two antennas as follows: ΡϋΡΟΟί' i, L :; ily 1 N ^ i=l Equation (18) ^BPCCH^ =士|u), and equation (19) UPH = P x max, /x mBX(^DPCCMt\5 ^DPCCH.2 ) Equation (20)

Equation (17) Alternatively, the WTRU may report a more aggressive UPH value to the network. For example, the WTRU may calculate the UPH for each antenna in a conventional manner and then report an excessive (i.e., larger) value to the network. More specifically, 'If UP is UPH at the antenna 1 connector and UPH at the UPH2S antenna 2 connector, the WTRU can report the largest of the two values 099133722 Form No. A0101 Page 23 / Total 69 Page 1003016704-0 The 201119451 value, as follows: UPH = max(UPHvUPH2) Temple (21) According to another embodiment, the WTRU may calculate the UPH for each time slot based on the minimum slot mode DPCCH power on the two antennas, and for the average period (For example, 100ms) Average the calculated time slot mode UPH. Calculated as follows:

INP UPH = — Y—--—-, Ν ί=\ min(i£,pCCT! (ί) >^DPCC/i,^ 寻(22) where PdPCCH,1 ( t ) and PpPCCH, .2 (Slotted mode DPCCH power measurements for antennas 1 and 2, respectively, and N is the number of time slots in the averaging period. According to another embodiment, first fTRlT can be tuned to 'on average period (eg, IObs) respectively The D^CCH function measurement at each antenna is averaged to calculate the filtered DPCCH power of each antenna, and then the minimum value of the filtered DPCCH power on the two antennas is used to calculate the UPH, such as

Shown below: Λ 1 w PDPCCHt\ — ~ ^PpPCCH \(tX JV t-\

UPH = , Λ A ^^^(Pdpcch,\, PdPCCH, 2 .

Equation (23) Equation (24) Equation (25) Alternatively, the ffTRU may report the average UPH value to the network. For example, the WTRU may calculate the UPH for each antenna in a conventional manner and then report the average of the two UPH values to the network. If the UPI^ is the UPH at the antenna 1 connector and the UPH is the UPH at the antenna 2 connector, then the WTRU may

U reports the average of the two values as follows: 099133722 Form Number A0101 Page 24 / Total 69 Page 1003016704-0 201119451 upH=^EilIElk 2 Equation (26) According to another embodiment, the WTRU may be based on two days The average slot mode DPCCH power on the line calculates the UPH for each slot and averages the calculated slot mode UPH for the averaging period (eg, 100 ms). upH can be calculated as follows:

UPH 1 slave J_y ^max, £

DPCCH.X (6) Seven P.DPCCH ~ Μβ Equation (27) Ο According to another embodiment, the WTRU may first calculate the average of the power of the DPCCH at the two antennas on the averaging period, and then calculate using the average of the DpccH power. UPH, as follows: λ I AT — PDPCCH, W ^ ^ ^(PDPCCH, l (t) + PDPCCH 2(ty) M ·, Equation (28) UPH- Equation (29) where ^^cc// 1+2 is the average power of the DPCCH on the two servant antennas. Ο DPCCHtU2 According to another embodiment, first, the WTM can calculate the total estimated DPCCH code power in the slot mode at the two antennas, and the thief calculates the slot mode UPH as follows. Shown: PDPCCH (0 ~ ^DPCCH , 1 (t) + p DPCCH , 2 (0 UPH(t) =

Equation (30) Equation (31) where Pmax,tx疋 is the maximum total transmit power of the two transmit antennas. The WTRU then calculates the υρίΙ to be reported to the network for the averaging period (eg, the time slot mode UPH on (4), as follows: 099133722 Form Number Α 0101 Page 25 / Total 69 Page 1003016704-0 201119451 Show: UPH = ^-yUPH{f) " Equation (32) According to another embodiment, the time slot mode UPH ' at two antennas can be separately calculated and then the corresponding beamforming coefficient α at each antenna is used. Squared to weight each time slot mode UPH to calculate the time slot mode UPH as follows: Equation (33) Equation (34) Equation (35)

UPHx(t) UPH2(t) aidsst,tx,2 ^DPCCH^^f) UPH{t) = a2(〇x UPHA{t)^ (i _a2(t))xUPH2(t) where Pmax,tx, 1 And Pmax, tx, 2 ^ WTRU maximum transmit power from transmit antennas 1 and 2. The WTRU then averages the time slots on the average evasion period (e.g., 100ms) to obtain the UPH to report to the network, as follows:

N υΡΗ = — ΥϋΡΗ(ί) equation (36;

The WTRU may use the current beamforming coefficients. Alternatively, beamforming coefficients that were most often used in the averaging window in the past can be used. Alternatively, the WTRU may use an average of the beamforming coefficient sizes during the averaging window. Alternatively, the WTRU may calculate upjj for each antenna in a conventional manner and report them separately. More specifically, the WTRU calculates UPH and _2 as follows: 1 099133722 Form No. A0101 Page 26 / Total 69 Page 1003016704-0 201119451 UPH' - Pm^u, ' ^DPCCH, \ Equation (37) P - Shun, 2,^DPCCH.2 5 Equation (38) where PDPCCH,1 and PDPCCH, 2 are the average of the slotted mode and the DPCCH power measured at the antenna 1 and 2 connectors, respectively, and P_>tx" and

PmQV + > is the maximum transmit power of the two antennas. The WTRU can then report the two UPH values to the network by scheduling information.

Two different SIs can be time multiplexed (ie, sent at different times). In order to identify the UPH between two antennas, the SI can be scaled to be reported during a specific Hybrid Automatic Repeat Request (HARQ) process. For example, the SI associated with UPH1 may be sent on an even-numbered HARQ process, while the SI associated with UPH2 may be sent on an odd-numbered HARQ... The SI associated with UPH1 and UPH2 may alternatively be included in a PDU that has a different type of Transmission Sequence Number (TSN) (e.g., an even or odd numbered TSN). -

Alternatively, two UPH values can be combined in one SI with a new SI format and sent together. The new SI format for transmitting the electrical add-on Pg can be defined by appending a new UPH booth to the regular SI format or by combining two upHs into a newly coded block or the like. The maximum allowable power of the wtRU for E-TFC limits and uph measurements for UL TX diversity, Pmax, tx, may have values different from the case of individual antennas. The WTRU may use E_TFC restrictions and/or 叩!! measured Pmax, tx values in any order or combination: (1) maximum allowed power configured by the network; (2) described by WTRU type Maximum allowable power; 099133722 Form number A0101 Page 27 of 69 1003016704-0 201119451 (3) Half of the maximum allowed power defined by the WTRU class when the WTRU is configured for UL TX diversity operation; or (4) A portion of the maximum allowed power (configured by the network or pre-defined in the specification) configured by the network or by the WTRU type. The WTRU may receive a configuration message indicating by the network one or more parameters related to the maximum transmit power. The WTRU may then calculate the value of Pmax, tx based on the set of parameters. The WTRU may also calculate the value of P based on its WTRU type and/or UL TX diversity status (configured or unconfigured), max. tx For example, the network may configure the WTRU with a particular maximum allowed power and a particular portion of the power, Used by the WTRU when configured for UL TX diversity operation (ie, P max max, allow power when UL TX diversity is not configured) and P: = px max ^ / max when UL TX diversity is configured , tx allows power ^. After applying DPCCH power adjustment and gain factor _, when the total transmit power on either antenna or the transmit power of any of the antennas exceeds the maximum allowable value' (the total maximum transmit power of the antenna) Or the maximum transmit power of each antenna, power scaling can be applied. According to one embodiment, power scaling can be applied to the channel before the application of the beamforming coefficients. If the transmit power exceeds the maximum allowable value on either antenna, then Before any other channel is shrunk, one or more E-DPDCHs first reduce their scaling factor to snacks, ~^ small, until /3 ed , k , reduce dan β eA , , 』 reaches /5 . And if the transmit power ed , k, reduced ed , k, min rate still exceeds the minimum allowable value, then the power scaling is applied to all channels equally. The power factor is E- ed , k , reduced DPDCH after power reduction And 0 is the configuration of E-DPDCH, ed, k, mink 099133722 Form No. A0101 Page 28/Total 69 Page 1003016704-0 201119451 Take a small value. According to this embodiment, the beamforming mode is maintained. In one embodiment, if the transmit power exceeds the maximum allowable value on any of the antennas, the UE-DPDCH is first reduced until 汐ed, k, reduced to a point η t min. If in the stone j α ed, k, min ed , k , reduced , to stone ed , k , min when the subscription transmit power still exceeds the maximum allowed power , the WTRU may further reduce the E-DPDCH power on the antenna before any other channel is reduced, wherein the larger beamforming weight range Apply to the E-DPDCH 'until effectively reduced beamforming weights reach the most

Small value. More specifically, the antenna index table having the maximum and minimum weight magnitudes is not respectively. = called 盟卜| and L = arg(four)% |. - ># ·Heart < The maximum and minimum beamforming weights are given by |Ice and 丨I I . The WTRU scales the Ε-ed DPDCH by the factor α on the antenna with the index imax until the effective beamforming power amplitude is reduced | | I ed9reduced\ reaches the minimum beamforming weight magnitude 丨, Mo Imm | | You 4=«以|>«^雄|. Keep the original phase '^ (ie,

Z wmax) The WTRU applies a weight magnitude of 1% to the E-DPDCH on the antenna. The WTRU also applies wmax to other channels on the antenna. If the WTRU transmit power is still ved3reduc&d | ^ηώι | while the ice is over, then the equivalent scaling (also called extra scaling) for all channels can be further applied. According to this embodiment, the most important part of the channel information (i.e., the phase offset between the two weights) can be maintained as much as possible. Therefore, compared with the equivalent scaling of the E-DPDCH on the two antennas, an insignificant performance loss of the E-DPDCH can be expected. 099133722 Form No. A0101 Page 29 of 69 1003016704-0 201119451

The original beamforming mode on all control channels remains unchanged. According to another embodiment, if the transmit power exceeds the maximum allowable value, the 1JE-DPDCH is first scaled down until the point ed , k, reduced' /3 _". If /5 = n . 1Π ed , k, reduced ed, k, min, WTRD ed, k, mi > η.» i cuu^eu βα, K, min 4 n 11 The transmit power still exceeds the maximum allowable Power, then before any other channel is shrunk, the WTRU may zoom in on the E-DPDCH on the antenna with index Imax until the effective reduced weight magnitude is minimized. While maintaining the original phase wj, ie, ax), W T R U will use the weight magnitude |~,~| for the E-D P D C Η and the w |

. If at WQ this, the r&duc&d power still exceeds the maximum allowed power, the WTRU further narrows the other channels with the factor ac on the antenna with the cable 丨1 max until the weight of the effective hop is c.reduced ^crreduced Achieve the minimum i", where Akmaxl. While maintaining the original phase 'aX(Z'ax>

The WTRU will use a weight of 1% kiss u for the other channels on the antenna, ie the lube channel. If the WTRU transmit power still exceeds the maximum allowed power at 1'-hkl, then the equal scaling of all channels can be applied. According to another embodiment, power scaling can be applied to the signals on each antenna after the application of the beamforming coefficients. When the transmit power on the antenna exceeds the maximum allowable value, the signal on each antenna can be independently scaled by adjusting the beamforming factor size on the antenna. If the transmit power on both antennas 099133722 Form No. A0101 Page 30/69 Page 1003016704-0 201119451 exceeds the corresponding maximum allowable value, power scaling can be performed in parallel on both antennas. This may result in beamforming mode distortion. However, system performance may not be affected by too much beam distortion, and this may be beneficial for WTRUs at the edge of the service area. According to another embodiment, the power scaling can be applied to the signal of each antenna after the application of the beamforming coefficients, so that for each antenna, the E-DPDCH is first scaled down until the point is ed before any other channels on the antenna are scaled down. 'k, reduced to 々ed, k, min. If at

If ed, k, and reduced do not reach ed, k, min, the transmit power still exceeds the maximum allowable value, then the equivalent scaling can be applied to all channels of the antenna. This embodiment will result in different beam patterns for the control and data channels. For example, this is needed to ensure better control channel protection at the expense of data channels. This approach may be advantageous from an implementation point of view because it can reuse the conventional power scaling scheme on each antenna separately.

According to another embodiment, a 2-step sequence can be implemented. In the first step, the weight on each antenna (i.e., the combination of beamforming factor and PA gain) can be independently adjusted to avoid 'beyond the maximum power on each antenna. The power reduction can be limited to a specific value. When the weight gain on one antenna cannot be further reduced and the transmit power still exceeds the maximum allowable power, the conventional power scaling scheme can be applied in the second step if the threshold test is passed. This embodiment may allow for certain levels of beam distortion prior to applying excessive power scaling rules. For the purpose of description 'and without loss of generality, use the following definition of the weight gain of antenna 1, α: weight gain of antenna 2, 2 099133722 1〇〇3〇167〇4-〇Form numberΑ0101 Page 31 of 69 Page 201119451 $ i : phase of antenna 1; : phase of antenna 1; and τ + μ: threshold value. I Π In the first step, if the transmit power on any of the antennas exceeds the maximum allowable power, the WTRU reduces the weight gain on that antenna (i.e., the combination of beamforming gain and chirp gain). The configured minimum weight gain is applied to each antenna. More specifically, for antenna j, the WTRU calculates a reduced weight gain value (α_) so that the maximum allowed power on the antenna does not exceed. The WTRU then performs a threshold test. If the threshold test is met for one or two antennas, the second step is applied. If the threshold test is not met for any antenna, the second step is not applied. As an example of a threshold test, the WTRU may calculate a relative change in amplitude gain and compare it to a threshold. The WTRU may calculate the relative change for antenna j as follows:

Relative change three Crelj =

Equation (39) If the change is above the threshold (ie, C, .>T+k), then the second step of rel, ) th is applied. Alternatively, the WTRU may calculate an absolute change in amplitude gain for antenna j and compare it to the threshold. The WTRU can calculate the amplitude gain change as follows:

Absolute change ξ

Equation (40) If the change is above the threshold (ie, c^Ah), then the second step is applied. Alternatively, the WTRU may calculate the generated weight vector and discrete it to 099133722 Form No. A0101 Page 32 / Total 69 pages 1003016704-0 201119451 Any other weight vector in the codebook is closer to the original W, as shown below W = a produces a2ej92 wf = • a\W a\ ej<h- weight vector. Originally defined as W and as special (41) Ο

Equation (42) The WTRU verifies that the distance between the generated weight vector and the original weight vector is less than any other weight vector in the codebook. In other words, the following conditions should be met: = a Waa

Wcimail=W Equation (43) ^ , ^cbsest ~arg min |wt -w Soldier T Wjtecodebook1 If the threshold test is met, perform the second step. In the second step, power scaling is equivalently applied in the two antennas of ^ r s, H is guaranteed in any antenna

Do not exceed the maximum power. Equivalently apply power scaling in two days of itch...u X ϋ; i : .S' - Λ. When the WTRU can first reduce the power of the data channel (Example 1, E-DPDCH) until the transmit power is no longer The maximum allowable power on more than two antennas or until the minimum power of the data channel is reached (ie, β , vr . =yS , if the minimum power of the data channel ed, k, reduced ρ ed, k, mi〆 is reached Additional scaling may be applied when the transmit power still exceeds the maximum allowed power on one or both antennas. The WTRU may apply unscaled antenna weights (ie, aj, j = l, 2) to apply additional scaling. The WTRU may apply the extra scaling using the scaled antenna weights (099133722 Form No. A0101 Page 33/69 pages 1003016704-0 201119451 ie ιΓθ, 2). When using unscaled weights, the beam (four) is not When the scaled antenna weight is ', it introduces beam pattern distortion, where the amount of distortion depends on the selected threshold criterion and threshold. ' & Figure 4 is the transmission power control according to an alternative embodiment. Example 4 The flow chart of 00 'Ru determines that the transmission power of any one antenna exceeds the maximum allowable power (4G2). If the transmit power of any antenna does not exceed the maximum allowable power, the power reduction is not performed. If any of the antennas are transmitted again The power exceeds the maximum allowable power' then the WT_small data channel (eg 'E-DPDCH''s gain factor' is up to the minimum configured value on one or more antennas exceeding the maximum transmit power, such that the transmit power becomes lower than Maximum allowable power (4α4), which can be performed equivalently on both antennas, in which case the beam pattern remains unchanged. Alternatively, the power scaling can be performed independently on each antenna This situation may result in several beam distortions. The WTRU then performs a threshold test to verify E_DpDCH& on any antenna that the reduced weight gain value has reached the minimum configuration value (4〇6). If the E-DPDCH is reduced in weight If the gain value does not reach the minimum configuration value on either antenna, power scaling is no longer performed. If the reduced weight gain value of the E-DPDCH reaches one The minimum configuration value on both antennas (ie, when 0ed, k, reduced=10,000, k Μη on one or two antennas), which means that the transmit power still exceeds that of any of the antennas For maximum allowable power, then 4 further applies the further reduction to all channels (408) equally or on each antenna on both antennas.

Since the power scaling on the data path in step 404 can be performed independently for each antenna prior to the threshold test, the data channel form on the other antenna is nicknamed A0101, 34th buy/total 69 pages 1003016704-0 201119451 'the antenna The data channel on one of the antennas can achieve minimum power. In this case, the extra in step 408 after the threshold test can be applied to the composite signal of the two antennas as it is applied (which is subject to the potential unequal scaling of the greedy channel). Alternatively, the WTRU may first apply additional scaling to facilitate the maximum reduction of the data channel 达到 to both antennas, and then apply a further power scaling to the resulting result at step 408. The following discloses the implementation of the transmission power control for multi-E-DCH codeword space multiplexing.

Way of application. For dual E-DCH codeword space multiplexing, a power control loop can be established for each E-DCH ..... code. In this case, the WTRU transmits two pilot channels (DPCCH1 and DPCCH2) and receives separate transmit power control (TPC) commands for each E-DCH codeword, and the regular power control can be applied independently. For each DPCCH. This provides a relative power reference for each stream. Figure 5 shows an exemplary transmitter for dual E_DCH codeword space multiplexing according to one embodiment. In this example, assume that when in UL MIM〇

When WTRII is configured in the mode, there is no transmission], two E-DPDCHs in different e-dpdcH streams share the same channelization code, two E_Dpcc}^ use the same channelization code, and two DPCCHs share the same channelization And the pilots in the two DPCCHs are orthogonal to each other. It should be noted that this assumption is for illustrative purposes only and can be configured for the county (e.g., simultaneous mailing is sent, and different _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Figure 5 shows that the DPCCH is not precoded, but < alternatively, the DPCCH or any other control channel can also be pre-coded. * (wlW4) indicates the coefficient of precoding. The subscript is the index of the _ word or physical antenna. 099133722 Form Number A0101 Page 35 of 69 1003016704-0 201119451 Transmitter 500 (ie, WTRU) includes channelization block 502, gain control block 504, I/Q mapping block 506, channel combiner 508, precoding block, Interference block and antenna. Two E-DCH code words ' (i.e., two e-DCH transport blocks) can be transmitted simultaneously. Each E-DCH codeword can be mapped to one E-DPDCH or more than one E-DPDCH' and the e-DPCCH is transmitted with each E-DCH codeword. Each channel, (ie, E-DPDCH, E-DPCCH, DPCCH, HS-DPCCH) is extended by channelization block 502 with the corresponding channelization code, and by gain control block 5〇4 with corresponding gain factor. And mapped by I/Q mapping block 506 to an I channel or a Q channel. The E-DPDCH and E-DPCCH for each E-DCH codeword are respectively combined by channel combiner 508' and multiplexed by precoding block 510 with precoding weights for distribution to each antenna. The DPCCH, HS-DPCCH, and precoded E-DCH channels are combined by channel combiner 512 for each antenna. The channel combined signal is multiplexed by the interference block 514 with the interference code and then transmitted via the antenna 516. The WTRU may calculate the e-DPDCH/DPCCH power offset independently for each stream (ie, for the power reference channel) E-DPDCH power offset). When calculating the E-DPDCH/DPCCH power offset, the WTRU calculates the temporary variable /5ed> i haj_Q. For each stream, when the E-DPDCH power extrapolation formula is configured, the valley can be calculated as follows: ed,1,harq Τ ΓΤ; (Man?) (hmimo) ·101^ Equation (44) When E- is configured When the DPDCH power interpolation formula is used, ySed ; hai^ can be calculated as follows: 099133722 Form No. A0101 Page 36 / Total 69 Page 1003016704-0 201119451

Ped,i,harq ' \h W,1 ?!--n 1 ’ — ^-9.ref,2 vv J ) (hharq\ •l〇L is entered into 20 ^ equation (45) where

L e,ref,2

L 'e,ref,\ ref Λ

In the case of e, ref, 2 ~~ K e, ref, l e, i fied, ref, 1 ~ ^ Ο y, the case of setting the fate is except: Equations (44) and (45) can also be used in their -TFC tanning process to determine the supported E-TFC group by μ·- .- r: ν': -·'

In equations (44) and (45), Δ... is the additional power offset factor to the input to take into account the additional required received power due to ΜΙΜΟ or dual stream transmission. Δ1^1110 compensates for additional WTRU interference caused by additional ΜI Μ 0 at the node Β receiver. The receiver structure requires different levels of shoe compensation, so ΔWmo can be signaled to the WTRU by higher layers. Δ mi mo can carry different values for each stream. The value of Δ mimo can depend on the ΜΙΜΟ mode of operation: spatial multiplexing or transmit diversity/beamforming. For example, the 'WTRU may be configured with 2 △!!!" thresholds, one value may be used when transmitting two streams, and the other value may be used when transmitting a separate stream. The WTRU may decide (eg 'based on node β signaling , channel status information, available margin, etc.) How many streams can be sent before the E_TFC limit, and use the appropriate Δπ^1110 value to calculate the supported E-TfC group and the required power for the selected transport block (TB) size 099133722 Form No. A0101 Page 37 of 69 1003016704-0 201119451 The parameter Δπήιηο can be combined in one of the variables in equations (44) and (45). For example, an additional ΜΙΜΟ power offset can be introduced into Harq# Rate offset (Δharq). In this case, the WTRU may be configured with two sets of HARQ# rate offsets: one for dual stream transmission and the other for single stream transmission. Alternatively, additional chirp power The offset can be broken into the reference gain factor (point ed, ref). In this case, the WTRU can be configured with two sets of reference gain factors: one for dual stream transmission and the other for single stream transmission. The value of mimo can depend on static parameters and / or dynamic parameters The static parameters are usually related to the transmitter and receiver structure, including whether the receiver type 'DPCCH is precoded' at Node B, whether the E-DPCCH is precoded, etc. These static parameters are tested in the Amiaio value. The ^(4) value can be signaled by the network. The dynamic parameters may include the MHJ0 mode of operation' (e. g. 'spatial multiplex for release diversity/Poton:' shaping), as well as quality of service (QoS) for each stream, which may change on a TTI basis. For the case of HSUPA, the HARQ profile can be seen as a parameter for QoS. The Δmimo of one stream may depend on the TB size (or equivalent to power) on the turbulence or alternatively the ΤΒ size (or equivalent to power) of another E-DCH stream. In the case of a dual power control loop, it may happen that a smaller transport block requires more transmission power. In this case, an additional power offset can be specified for all transport block sizes. In order to reduce the overhead of transmission in this case, a reduced extra power offset group can be used. The reduced additional ΜΙΜΟ power offset set can be designed to specify an additional ΜI Μ 0 power offset for the range of the size. For example, the WTRU may receive a list of transport block sizes, (or index, ie, E-TFCI), and associated additional ΜΙΜΟ power offsets from the network, and construct an additional ΜΙΜΟ power offset with the range and associated Table, as shown in Table 1. 099133722 Form Α Α 0101 Page 38 / Total 69 Page 1003016704-0 201119451 Table 1 E-TFCI > — .. Associated as (4) (in dB) <25 0 25,...,50 0.25 51 ,...,75 0.5 76,...,100 0.75 100,...,128 1.0 △ The mimo value can depend on the TB size pair sent (one size of each stream). The ratio of inter-stream interference depends on the relative power between each stream. Therefore, relatively large transport blocks may interfere with small transport blocks more than they interfere with large transport blocks. The additional ΜIM0 power offset value may depend on the power offset difference between the two e-DCH streams. Without loss of generality, the seven-cargo-E-DCH flow is better than the second one-

The DCH stream is sent at a higher power. It is assumed that \u is the power difference (in dB) between the first e-DCH power and the second Ε-DCH power. The power of the first E-DCH is defined as all associated with the first kDCH stream

The full power of the E-DPDCH, and may include the power of the associated e-DPCCH on a weekly basis. The power of the second Ε-DCH is defined to be the total power of all E-DPDCHs associated with the second Ε-DCH stream, and may include the power of the associated E-DPCCH at the same time. The WTRU may be based on the calculated δρ value

The E-DCH calculates additional ΜΙΜΟ power offset values Δ mim 〇 l and Δ mim 〇 2 for the first and second E-DCH streams, respectively. Δ miinOj j = l, the value of 2 can be defined based on the range of various ΔΡε ι^η, as shown in Table 2. The WTRU uses the value to determine the required additional power offset for each e-TFC pair. In the E-TFC restriction, the WTRU may also be 099133722 Form Number Α 0101 Page 39 / Total 69 Page 1003016704-0 201119451 Table 2 ΔPe-dch Range Amimo! Amim〇2 (dB) — 〇〇 1 N/A 0 0.5 1 1 ~ 3 0 2 3 - 6 0 3 Greater 0 5 When the total WTRU transmit power exceeds the maximum allowable value after applying the DPCCH power adjustment, the power scaling can be applied to the two E-DCH streams in parallel. One or more E-DPDCHs may be first scaled down before any of their channels are scaled until Θ a , , - Λ - on the two streams. And right ed , k .reduced ed fk ,min The maximum EPC DCH flow of the boat can be reduced first, until k , reduced ^ ed , k , min on the stream . Then, if necessary, the E-DPDCH on other streams can be reduced until there are no ^-ed-k, reduced β β ed , k min on the stream when 两个ed , k , reduced ed , k on the two streams In min, the equivalent scaling β J of all channels on both streams can be applied, which can be configurable for each stream. Ed , k , min Alternatively, the WTRU may first reduce the E-DPDCH power on the predetermined stream. In one example, the predetermined stream can be a secondary stream. If the WTRU is still power limited after power scaling on the predetermined stream, the WTRU may further reduce the E-DPDCH power on the other stream "If the WTRU is still power limited after power scaling on other streams, then Additional scaling is equivalently applied on both streams. The primary stream may be defined as a data stream sent over a preferred precoding weight notified by the network, and the secondary data flow may be defined as being orthogonal to the weight used by the primary stream. 099133722 Form No. A0101 Page 40/Total Other data streams sent on top of the pre-edited weights on page 69, 1003016704-0. According to another embodiment, the amount of money added by the two streams __DPDCH can be equivalently reduced until the transmit power no longer exceeds the maximum allowable value or until the gain factor of the reduced E-DPDCH reaches a minimum Value (ie, β = Ο ed, k, redUCe(TPed, k, min). If the transmit power still exceeds the maximum allowable value' then the gain factor of the E_DpDCH on the other stream can be reduced 'until the transmit power no longer exceeds the maximum A value of 1 until the number of increments (4) of the E-DPDCH for the stream reaches its minimum. If the transmit power still exceeds the maximum allowable value, an equivalent scaling can be applied on all channels until the transmit power no longer exceeds the maximum allowable value. The following is disclosed for separate DL DPCCp or partial enthalpy; using physical channels (

F-DPCH) is the implementation of two E-DCH Stream-Power System (TPC) commands. The network sends a TPC command for each E-DCH stream such that the WTRU receives two TPC commands for the two E-DCH streams on the downlink, according to one embodiment 'TPC commands for the two E-DCH streams of the WTRU It can be time multiplexed on the F-DPCH. Figure 6 shows the conventional F-DPCH structure. In the conventional F-DPCH, two TPC bits in each _TPC command can be sent in each time slot of the F-DPCH. Thus a separate f- The DPCH supports up to 10 WTRUs. Figure 7 illustrates an exemplary TPC command transmission on the F-DPCH in accordance with this embodiment. In Fig. 7, 'TPC11 and TPC12 are TPC command bits for stream 1 and stream 2 of the WTRU, respectively. Two TPC bits can be transmitted for each TPC command (i.e., 'NTpe = 2). In this example, up to five WTRUs configured for dual stream transmission may be supported by one F-DPCH. A TPC bit intercept is sent to the WTRU that is not configured for dual stream transmission. For two E-form numbers A0101 Page 41 of 69 10031 201119451 The TPC commands for DCH streams can be temporally adjacent on or off the f-DPCH. According to another embodiment, the new TPC bit pattern can be defined as two power control loop combined transmit power control commands such that the Ntpc bits on each Tpc command indicate TPC commands for the two data streams. The gain of the F-DPCH field for the TPC command can be increased to support the additional information needed. Table 3 shows the conventional F-DPCH slot format 〇, and an exemplary slot format β for supporting F-DPC 多于 of more than 2 TPC bits per slot, for example, slot format 0Α and 0C supports 4 tpC bits on each slot, and slot formats 0Β and 0D support 8 tpc bits on each slot. The slot format 0 is a conventional F-DPCH slot format. At the same time, different F-DPCH slot formats can be derived. , Table 3 Slot format #1 Channel bit rate (kbps) Channel symbol ratio (ksps) SF bit/slot Noffi Bit/slot Ntpc Bit/slot N〇FF2 Bit/slot 0* 3 1.5 256 20 2 2 16 — 0Α 3 1.5 256 20 0 4 16 UB 3 1.5 256 20 0 8 12 0C 3 1.5 256 20 2 4 12 0D 3 1.5 256 20 2 ···. -.... 8 10 Table 4 The stream 1 and stream 2 columns in the corresponding TPC command interpretation for the first and second streams (or equivalent first and second DPCCHs), respectively. For a WTRU configured for ΜΙΜΟ mode with dual codeword transmission, the WTRU's TPC commands are explained in accordance with Table 4. 099133722 Form No. Α0101 Page 42 of 69 10〇3〇16704- 201119451 [0005] Table 4 TPC Bit Mode TPC Command N_TPC = 2 N_TPC = 4 N_TPC = 8 Stream 1 Stream 2 11 1111 11111111 1 1 00 0000 00000000 0 0 01 0101 01010101 0 1 10 1010 10101010 1 0 A new TPC bit pattern for dual streams can be defined to maintain backward compatibility. As an example, Table 5 shows the TPC ternary mode for the backward compatible N = 4 slot format TPC ', Ο 0C, and NTpc = 8 slot format 0D. Similar tables can be exported for different slot formats. The Tpc information used for the first stream is the same as in the case of the signal stream. - [0006] ❹ Table 5 TPC Bit Mode TPC Command N_TPC = 2 N_TPC = 4 N_TPC = 8 Stream 1 Stream 2 11 1111 11111111 1 1 00 0000 00000000 0 0 N/A 0011 00001111 0 1 N/A lioo 11110000 1 0 According to another embodiment, a new F-DPCH format with a smaller spreading factor can be introduced to send more information bits. When the WTRU switches between a separate power control loop and a dual power control loop, a problem arises regarding how to generate or merge TPC commands. For example, although the network signals the WTRU that the current UL channel condition supports dual stream transmission, the WTRU may choose to transmit with one stream/codeword. Thus, one UL power control loop is sufficient for separate streaming, while during the transition from two work 099133722 Form Number A0101 Page 43 / Page 69 1003016704-0 201119451 Rate Control Loop to a Single Power Control Loop, the WTRU Two TPC commands can be received and the two TPC commands combined to obtain a separate TPC command for application to a separate streaming. This may be relevant, for example, when the number of sent streams is dynamic but changes relatively slowly. The WTRU may combine two TPC commands for two streams as shown below. The WTRU may generate the derived TPC command (TPC cmd) if the hard decision on the two TPC command values is '1', otherwise the derived TPC command (TPC cmd) is generated as '-1. . Alternatively, the network can be streamed separately in the two configured TPC fields.

Send a TPC command. The conventional F-DPCH format does not need to be reconfigured. The WTRU receives two TPC intercepts and receives them from two fields based on it

Information to make a final decision on the final TPC order. The derived TPC commands can be generated by weighting soft decisions on each TPC intercept. For example, the soft decision on the TPC of the i-th stream is denoted as P, 丨=1,2, and the i TPC command can be obtained as follows: TPC_camd= ΐ-1, female Chen: 5+/3⁄4 SO· may also be used for operation A single power control loop for a WTRU in dual codeword space multiplexed UL mode. In this case, there is one UL power control loop for each, regardless of the configuration of the WTRU in the ΜΙΜΟ mode of operation. The DPCCH gain factor for the two DPCCHs can be set to the same value (ie, /3⁄4 = total 2). In other words, the power of the second DPCCH is the same as the power of the first DPCCH. Alternatively, the DPCCH gain factor can be set to be different as follows: where a is a fixed value that can be signaled by the network. 099133722 Form number Α 0101 Page 44 / Total 69 pages 1003016704-0 201119451 In this case 'Yang (10) power for the second liver can be based on the power of the DPCCH and the configured gain offset ^ in each time slot Make adjustments on it. Alternatively 'for the second pilot channel (eg, the power offset of the DPC (8) may depend on the ratio of all pilot symbols contained in the f- and second pilot channels. For example 'if the first pilot channel carries 8 a pilot symbol, and the second pilot channel carries 1G pilot symbols, and the power offset of the second pilot channel relative to the first pilot channel can be set to 8/1 () or approximately lower than ldB, ( That is, 101〇gi()(8/1〇) = _〇.97 )). This value can be calculated by the WTRU based on the configuration of the pilot channel, or can be pre-calculated based on the possible ratios. ..., -s βf instead Double code subspace multiplex, transmitting freshly realizes single codeword. Space multiplex, - ^ ^ , A > where separate E_DCH codewords are transmitted via two transmit antennas. Figure 8 shows an embodiment according to one embodiment An exemplary transmitter 800 for single codeword space multiplexing. In this example, assume that dpdch is not transmitted when the WTRU UL is configured to be in the ΜΙΜΟ mode, two! share the same channelization s and two DPCCHs The pilots are orthogonal to each other. It should be noted that this assumption is only used to indicate g, And - any ~ what configuration can be applied (for example 'DPDCH can be sent simultaneously, and different channelization codes can be used for any channel). Figure 8 shows that DPCCH is not precoded, but as an alternative to 'DPCCH or Any other control channel may also be precoded. Since there is one E-DCH stream, one E-DPCCH is transmitted. Transmitter 800 (i.e., WTRU) includes channelization block 802, gain control block 804, I/Q mapping block 8 〇6, channel combiner 808, channel combiner 814, demultiplexer 810, precoding block 812, interference block 816, and antenna 818. An E-DCH codeword ' (ie, an e-dCH transport block), Map to 099133722 Form No. A0101 Page 45 / Total 69 Page 1003016704-0 201119451 One or more Ε-DPDCH. Each channel, (ie, DPDCH' E-DPCCH' DPCCH, HS-DPCCH), channelized Block 802 is extended with the corresponding channelization code, multiplexed by the gain control block 8 〇4 with the corresponding gain factor' and mapped by I/Q mapping block 8〇6 to the I channel or Q channel. E-DPDCH Merged by channel combiner 808 and demultiplexed by demultiplexer 810 Two streams. The two streams are multiplexed by precoding block 812 with precoding weights to distribute to each antenna. DPCCH, HS-DPCCH, E-DPCCH, and precoded E-DPDCH by channel combiner The 814 is combined for each antenna. The channel combined signal is multiplexed by the interference block 816 with the interference code and then transmitted via the antenna 818. Alternatively, DPCCH and/or E-DPCCH may also be pre-coded. When setting the gain factor for E-DPDCH, the temporary variables are not counted _d: township, i, harqe| can be followed by the same equations (44) and U5), except that the value of Διηίιη〇 can be independent of only A transport block is sent outside the relative power between the two transport blocks when sent. According to another embodiment": different interferences. Marco is applied on each antenna without any precoding (referred to as a pseudo spatial multiplexing scheme). Figure 9 shows an implementation for implementation according to one embodiment An exemplary transmitter 900 of a pseudo-space multiplex scheme. The transmission scheme in Figure 9 is not a typical scheme and does not require multiple receive antennas at the base station because the interference code can be used to separate the streams. The machine may simply send each WTRU transmit antenna as a virtual subscriber or WTRU. It should be noted that multiple receive antennas in a base station with an interference cancellation receiver may provide improved performance for this case. Two independent power control loops are used, one for each virtual user/WTRU. 099133722 Form Number Α0101 Page 46/Total 69 Page 1〇〇201119451 In this example, it is assumed that the ΜI MO mode is configured. When the WTRU is %, ν» has a DPDCH transmitted, and two E and DPCCHs in different E-DPDCH streams share the same channelization code, and the two E-DPCCHs share the same channelization code. The two DPCCHs share the same channelization code, and the pilots in the two DPCCHs are orthogonal to each other. It should be noted that this assumption is for illustrative purposes only, and any configuration can be applied (for example, DPDCH can be transmitted simultaneously and differently The channelization code can be used for any channel).

Transmitter 900 (i.e., WTRU) includes channelization block 902, gain control block 904, I/Q mapping block 916, channel combiner, 91 〇, interference block 912, and antenna 914. Two E-DCH code words (i.e., 'two E_DCH transport blocks') can be transmitted simultaneously. Each E-DCH codeword can be mapped to one or more E-DPDCHs, and the E-PPCCH can be transmitted with each of the 11 words. Each channel, (ie, E-DPDCH, E DPCCH, DP CCH, HS-DPCCH), is extended by channelization block 902 with a corresponding channelization, and multiplexed by gain control block 9G4 with a corresponding gain factor, And mapped by I/Q mapping block 906 to a 1-channel or Q-channel 、11, 910 can be combined for each antenna pair. The combined edge of the edge is multiplexed by the interference block 912 with different trunks (4), and then red is transmitted by the antenna 914. Since the different streams can be regarded as independent WTRUs, the advantages of infrastructure and scheduling are simplified. In an embodiment, the data offset may be increased to increase the data throughput power offset according to equation (44) and the power of the track. The power reduction according to the above-disclosed embodiment can be implemented by performing line transmission and transmitting 1003016704-0. Embodiment 1, a method for numbering multiple days in the uplink in the WTRU 099133722 Α0101 47th buy/total 69 pages 201119451 Method of shooting power control. 2. The method of embodiment 1 comprising generating at least one input stream for transmission. 3. The method of embodiment 2, comprising applying a gain factor to each of the channels included in the input stream, the gain factor being determined based on a reference channel power estimate. 4. The method of embodiment 3, the method comprising generating at least two data streams for transmission via the plurality of antennas from the input stream. 5. The method of embodiment 4, the method comprising applying a weight to the data stream, wherein at least one of the gain factor or the weight is controlled such that the transmit power on each antenna is within a maximum allowed value. 6. The method of any of embodiments 2-5, further comprising performing a power measurement on the power reference channel on each antenna. 7. The method of embodiment 6 comprising filtering the power measurements over a predetermined period to calculate an average reference channel power estimate on each antenna. 8. The method of embodiment 7, the method comprising selecting all antennas

The largest average reference channel power estimate in the average reference channel power estimate on iJ is used as the reference channel power estimate. 9. The method of any of embodiments 2-8, further comprising calculating an UPH for each antenna. 10. The method of embodiment 9, the method comprising selecting a smallest one of the UPHs calculated for all of the antennas. 11. The method of embodiment 10, the method comprising transmitting scheduling information including the selected UPH. 12. The method according to any one of embodiments 2-11, the method 099133722, the form number A0101, the 48th, the 69th, the 1003016704-0, the 201119451, further including the case where the transmit power on any of the antennas exceeds the maximum allowable value. Next, perform power scaling. 13. The method of embodiment 12, comprising reducing the E_DPDCH' on the antenna that exceeds the maximum allowable value until the transmit power does not exceed the maximum allowable value or the gain factor of the E-DPDCH reaches the minimum gain value of the E-DPDCH. 14. The method of embodiment 13 wherein the method includes reducing all channels on both antennas if the transmit power still exceeds the maximum allowable value after the E-DPDCH is reduced. . . . . . . . . . . . . a method for transmitting power control in a WTRU applying a multi-antenna transmission in the uplink. Ύ:, 二' ·:;Λ | i. 16. The method of embodiment 15, the method comprising: generating at least one E-DCH Ma word. 17. The method of embodiment 16 comprising generating at least two data streams for transmission via the plurality of antennas from the E-DCH codeword. «': :« ΐί·. 18. The method according to embodiment 17 / the method comprising calculating an E-DPDCH power offset for each data stream, the E-DPDCH power offset being calculated based on the temporary variable, The variables are calculated based on the extra power offset factor due to multi-stream transmission. 19. The method of embodiment 18, the method comprising applying a Ε-DPDCH power offset. 20. The method of embodiment 19, comprising: transmitting a data stream, the method of any one of embodiments 18-20, wherein the additional power offset factor is for each data stream Different values. 22. The method according to any one of embodiments 18-21 wherein the amount 099133722 form number Α0101 page 49/69 page 1003016704-0 201119451 external power offset factor depends on ΜΙΜΟ mode of operation, receiver type,

Whether DpCCH is precoded, whether E_DpcCH is precoded, or at least one of the QoS of each data stream. The method of any one of embodiments 18 to 22, wherein the additional power offset factor is dependent on a τ B size of each data stream or a pair of TB sizes of the data stream. The method of any one of embodiments 18-23 wherein the additional power offset factor is dependent on a power offset difference between the data streams. The method of any one of embodiments 1 to 6 wherein a separate DPCCH is transmitted via each antenna and the transmit power of the DPCCH is controlled by a single power control loop. 26. A WTRU for transmitting power control for multiple antenna 'transmissions in the uplink. 44. The WTRU of embodiment 26, the WTRU comprising a plurality of antennas. 28. The WTRU of embodiment 27, the WTRU comprising a processor' that is configured to generate at least one input stream for transmission. 29. The WTRU as far as embodiment 28, wherein the processor is configured to apply a gain factor to each of the channels included in the input stream, the gain factor being determined based on the reference channel power estimate. The method of embodiment 29, wherein the processor is configured to generate a stream for transmission via the plurality of antennas. The numerator is privately paired 31. According to the embodiment 1, the ^^1^, where the "less" is applied by the data stream, wherein the gain factor or the weight is within 1 value. Controlling such that the transmit power on each antenna is at the most u, wherein 32, according to any of embodiments 28-31, 100301 099133722, number A0101, page 50, page 69, 201119451 processor is configured to The power measurements on the power reference channel are performed on the antennas, and the power measurements are filtered on a pre-cycle to calculate an average reference channel power estimate on each antenna and select an average reference channel power estimate on all antennas. The largest of the average reference channel power estimates is used as the reference channel power estimate. The WTRU as in any one of embodiments 28-32 wherein the processor is configured to calculate an UPH for each antenna.

34. The WTRU of embodiment 33 wherein the processor is configured to select a smallest one of the UPHs calculated for all antennas and to transmit scheduling information including the selected UPH. The WTRU as in any one of embodiments 28-34 wherein the processor is configured to 'reduce the E-DPDCH if the transmit power on any of the antennas exceeds a maximum allowable value until the transmit power does not exceed a maximum The allowable value or the gain factor of the E-DPDCH reaches the minimum gain value of the E-DPDCH', and after the E-DPDCH is reduced, the transmission power still exceeds the maximum allowable value, and all channels are reduced. Ο 36, one for uplink Multiple antennas in the link transmit WTRUs that transmit power control. 37. The WTRU of embodiment 36, the WTRU comprising a plurality of antennas. 38. The WTRU of embodiment 37, the WTRU comprising a processor configured to generate at least one E-DCH codeword. 39. The WTRU of embodiment 38 wherein the processor is configured to generate at least two data streams for transmission via the plurality of antennas from the E-DCH codeword. The WTRU of embodiment 39, wherein the processor is configured to calculate an E-DPDCH power offset for each data stream, E-DPDCH power offset base 099133722 Form Number A0101 Page 51 of 69 Page 303016704- 0 201119451 is calculated as a temporary variable that is calculated based on the extra power offset due to multi-stream transmission. 41. The WTRU of embodiment 40 wherein the router is configured to apply an E-DPDCH power offset and to transmit the data stream. The WTRU as in any one of embodiments 40-41 wherein the additional power offset factor is a different value for each data stream. The WTRU as in any one of embodiments 40-42 wherein the additional power offset factor is dependent on a mode of operation, a receiver type, whether the DPCCH is precoded, whether the E-DPCCH is precoded, or each At least t extravagance in the QoS of the data stream. 44. The WTRU as in any one of embodiments 40-43 wherein the additional power offset factor is dependent on a TB size of each of the data streams or a pair of TB sizes of the data stream. The WTRU of any one of embodiments 40-44 wherein the additional power offset factor is dependent on a power offset difference between the data streams. The WTRU as in any one of embodiments 37-45, wherein a separate dPcch is transmitted via each antenna, and the transmit power of the DPCCH is controlled by a single power control loop, although the features and components are specific to the above Combinations are described, but those skilled in the art will appreciate that each feature or element can be used alone or in any combination with other features and elements. In addition, the methods provided herein can be implemented in a computer program, software, or (d) in a computer or processing computer. Examples of computer readable media include electronic signals (sent on wired or wireless connections) and computers 099133722 readable storage media. Examples of computer readable storage media include, but are not limited to, read only memory, random access memory (ram), form number A0101, page 52, total 69, 1003016704-0, 201119451, registers, buffer memory, semiconductor memory devices Magnetic media such as internal hard disks and removable magnetic disks, magneto-optical media, and optical media such as CD-ROM magnetic disks and digital versatile compact discs (DVDs). A processor associated with the software can be used to implement a radio frequency transceiver for use in a WTRU, UE, terminal, base station, RNC, or any host computer. BRIEF DESCRIPTION OF THE DRAWINGS [0007] A more detailed understanding can be obtained from the following description of examples given in conjunction with the figures, wherein: FIG. 1A is an exemplary embodiment of one or more disclosed embodiments. A system diagram of a communication system, FIG. 1B is a system diagram of an exemplary WTRU that can be used in the communication system shown in FIG. 1A; FIG. 1C is a diagram that can be used in the communication system shown in FIG. 1A System diagram of an exemplary radio access network and an exemplary core network; Figure 2 shows an exemplary transmitter with a beamformer in accordance with one embodiment; Figure 3 shows a unit power constraint Exemplary transmitter of a beamformer; FIG. 4 is a flow chart of an exemplary transmit power control process according to a 2-step method. FIG. 5 is a diagram showing a dual E-DCH codeword space multiplexing according to an embodiment. Exemplary transmitter; FIG. 6 shows a conventional F-DPCH structure; FIG. 7 shows an exemplary TPC command transmission on the F-DPCH according to the embodiment; FIG. 8 shows an implementation according to an implementation Way for single codeword space Interworking multiplexed form number A0101 Page 53 of 69 1003016704-0 201119451 Exemplary Transmitter; and Figure 9 illustrates an exemplary transmitter for implementing a pseudo space multiplex scheme, in accordance with one embodiment. [Main component symbol description] [0008] 200, 300, 500, 800, 900 transmitter 516 '206 ' 306 ' 308 ' 818 ' 914 antenna 514, 816, 912 interference block 502 channelization block 303a, 504, 804, 904 Gain control block 506 '806 > 906 I/Q mapping block 508, 808, 908, 910 channel combiner E-DPDCH dedicated physical data channel 100 communication system 114a' 114b base station 102, 102a, 102b, 102c, 102d, WTRU wireless Transmit/receive unit ί: 116 Empty Intermediary 104, RAN Radio Access Network 106 Core Network 110 Internet 108, PSTN Public Switched Telephone Network 110 Internet 112 Other Network 118 Processor 120 Transceiver 122 Transmit /Receiving Components 099133722 Form No. A0101 Page 54 of 69 1003016704-0 201119451 124 Speaker/Microphone 126 Keyboard 128 Display/Touchpad 130 Non-Removable Memory 132 Removable Memory 134 Power 136, GPS Chipset GPS Global Positioning System 138 peripherals

140a, 140b, 140c Node B 142a, 142b, RNC Radio Network Controller 144 > MGW Media Gateway 146 > MSC Mobile Switching Center 148 'SGSN Serving GPRS Support Node 150' GGSN Gateway GPRS Support Node 202, 302 Weighting Block 204 ' PA Amplifier

303b Phase Control Block TPC Transmit Power Control F-DPCH Partial Dedicated Physical Channel 810 Demultiplexer 812 Precoding Block 814 Channel Combiner 802, 902 Channelization Block 904 Gain Control Block 099133722 Form Number A0101 Page 55 of 69 Page 303016704 -0

Claims (1)

201119451 VII. Patent Application Range: 1. A method for transmitting power control of multi-antenna transmission in an uplink in a wireless transmit/receive unit (WTRU), the method comprising: generating at least one for transmission Input stream; applying a gain factor to each channel included in the input stream, the gain factor being determined based on a reference channel power estimate; generating at least two data for transmission via the complex antenna from the input stream And: applying a weight to the data stream, wherein at least one of the gain factor or the weight is controlled such that a transmit power on each antenna is within a maximum allowed value. 2. The method of claim 1, further comprising: performing power measurement on a power reference channel on each antenna; filtering the power measurement over a predetermined period to calculate on each antenna An average reference channel power estimate; and selecting one of the average reference channel power estimates across all antennas as the reference channel power estimate. 3. The method of claim 1, further comprising: calculating a UE power headroom (UPH) for each antenna; selecting a minimum among the UPHs calculated for all antennas; and transmitting including the selected ones UPH scheduling information. 4. The method of claim 1, further comprising: performing power scaling if a transmit power on any of the antennas exceeds a maximum allowable value; and reducing an E-line on the day of the line exceeding the maximum allowable value DCH special physical resources 099133722 Form No. A0101 Page 56 / Total 69 pages 1003016704-0 201119451 Material channel (E-DPDCH), until the launching power, .... ^ knife year does not exceed the maximum allowable s noon value Or a gain factor of the E-DPDCH to a minimum gain value of the E-DPDCH; In the case where the transmission power still exceeds the maximum allowable value after the E-DPDCH is reduced, all channels on both antennas are reduced. A method for transmit power control of multi-antenna transmissions in an uplink in a wireless transmit/receive unit (WTRU), the method comprising G 产生 generating at least one enhanced dedicated channel (E-DCH) codeword Generating at least two data streams for transmission via the complex antenna from the E-DCH codeword; "To see, ', λ. . 2, calculating an E-DCH dedicated physical data channel for each data stream' (E- DPDCH) power offset, the E-DPDCH power offset is calculated based on a temporary variable 'calculated based on an additional power offset factor due to multi-stream transmission; applying the E-DPDCH power offset Move; discuss and send the data stream. The method of claim 5, wherein the additional power offset factor is a different value for each data stream system, such as the method of claim 5, wherein the additional power is biased. The shift factor is based on whether a multiple input multiple output (ΜΙΜΟ) operating mode, a receiver type, a dedicated physical control channel (DPCCH) is pre-compiled, and whether an E-DCH dedicated physical control channel (E-DPCCH) is pre-fetched. At least one of the quality of service (QoS) of each of the data streams, or the method of claim 5, wherein the additional power offset factor is based on a transport block of each data stream. (TB) Size or the said capital 099133722 Form No. A0101 57th buy / Total 69 pages 1003016704-0 201119451 A pair of streams of the size B. 9. The method of claim 5, wherein the additional The power offset factor is based on a power offset difference between the data streams. The method of claim 5, wherein a separate dedicated physical control channel (DPCCH) is transmitted via each antenna. And controlling a transmit power of the DPCCH by a single power control loop. 11. A wireless transmit/receive unit (WTRU) for transmitting power control for multi-antenna transmission in an uplink, the WTRU comprising: a plurality of antennas And a processor configured to generate at least one input stream for transmission, applying a gain factor to each of the channels included in the input stream, the gain factor being determined based on a reference channel power estimate, Generating at least two data streams for transmission via the complex antenna from the input stream, and applying a weight to the data stream, wherein at least one of the gain factor or the weight is controlled such that each antenna The WTRU of claim 11, wherein the processor is configured to perform power measurement on a power reference channel on each antenna for a predetermined period of time. Filtering the power measurements to calculate an average reference channel power estimate on each antenna and selecting all antennas The WTRU of the ninth aspect of the invention, wherein the processor is configured to calculate a UE power headroom for each antenna. (UPH), select a minimum among the UPHs calculated for all antennas, and send scheduling information including the selected UPH. 099133722 Form No. A0101 Page 58 of 69 1003016704-0 201119451 14 . The chores described in item u, wherein the processor is configured to 'reduce an E_I> CH-specific physical data channel (E-DPDCH) if a transmit power on any of the antennas exceeds a maximum allowable value until said Transmitting power does not exceed the maximum allowable value or a gain factor of the E-DPDCH reaches a minimum gain value of the E-DPDCH, and the transmit power still exceeds the maximum after the E-DPDCH is reduced In the case of allowed values, all channels are reduced. 15. A wireless transmit/receive unit (WTRU) for transmitting power control of multi-antenna transmissions in an uplink, the WTRU comprising: a plurality of antennas; and a processor configured to generate to The strong special channel (E_DCH) code 'from the E-DCH code word is produced and used: release. At least two data streams transmitted by the complex antenna, and one Έ-DCH dedicated physical data is calculated for each data stream. Channel (E-DPDCH) power offset, the E-DPDCH power offset is calculated based on a temporary variable that is calculated based on an additional power offset factor due to multi-stream transmission, applying the E_DPDCH Power ❹ offset and send the stream. 1: The FTRU of claim 15, wherein the additional power offset factor is a different value for each data stream. 17. The WTRU as claimed in claim 15 wherein the additional power offset factor is based on whether a multiple input multiple output (ΜΙΜΟ) mode of operation, a receiver type, a medical-specific physical control channel (DPCCII) is Precoding, whether an E-DCH dedicated physical control channel (e-DPCCH) is precoded, or at least one of a quality of service (q〇S) of each data stream. 18. The WTRU as claimed in claim 15 wherein said additional power offset factor is based on a transport block (TB) size of each data stream or said 099133722 form number A0101 page 59 of 69 1003016704-0 201119451 A pair of data streams Τ B size. 19. The WTRU of claim 15 wherein said additional power offset factor is based on a power offset difference between data flows. 20. The WTRU of claim 15 wherein a separate dedicated physical control channel (DPCCH) is transmitted via each antenna and a transmit power of the DPCCH is controlled by a single power control loop. 099133722 Form No. A0101 Page 60 of 69 1003016704-0